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Legion 5-15IMH05H - Type 81Y6 - Unknown device - ACPI\VEN_LHK&DEV_2019

2020-10-17, 22:18 PM

I have downloaded all the drivers I can for this laptop, but there is an 'unknown device' showing in Device Manager with Hardware ID "ACPI\VEN_LHK&DEV_2019" - Please can you provide me with the correct driver to rectify this? I have updated the BIOS, Chipset and all other drivers from the Lenovo web site appropriate for my equipment.

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Re:Legion 5-15IMH05H - Type 81Y6 - Unknown device - ACPI\VEN_LHK&DEV_2019

2020-10-18, 1:01 AM

Assuming you are running Windows 10, the current driver (linked below) is for ACPI\VEN_VPC&DEV_2004 so hopefully installing the latest driver will resolve the problem, because I do not see an older driver for your model specific to ACPI\VEN_LHK&DEV_2019.

 

Lenovo Energy Management for Windows 10 (64-bit) - Notebook

https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/legion-series/legion-5-15imh05h/downloads/driver-list/component?name=Power%20Management

 

 

Cheers,

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Re:Legion 5-15IMH05H - Type 81Y6 - Unknown device - ACPI\VEN_LHK&DEV_2019

2020-10-18, 8:05 AM

Unfortunately that driver does not change things. I have also had to completely re-install Windows 10 due to one of the drivers I installed earlier causing a BSOD every time I restarted the laptop. I've only used the drivers for this laptop. As this is a brand new £1300 laptop, I am not in the slightest bit impressed with Lenovo over this. Whilst the specs and performance are impressive, how can they get away with shipping things that aren't actually working properly? Even a restore to a factory shipped state doesn't remove the "unknown device".

Poor show Lenovo.

 

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08-31-2020

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Re:Legion 5-15IMH05H - Type 81Y6 - Unknown device - ACPI\VEN_LHK&DEV_2019

2020-10-19, 12:12 PM

I'm guessing you have a hardware issue. May not be a driver issue per se. That device may simply not be working properly. I'd return it starting hardware issues.

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Re:Legion 5-15IMH05H - Type 81Y6 - Unknown device - ACPI\VEN_LHK&DEV_2019

2020-10-25, 16:26 PM

@ Cam3n wrote:
 

 

I'm guessing you have a hardware issue. May not be a driver issue per se. That device may simply not be working properly. I'd return it starting hardware issues.

 

I'm guessing I don't, not when you search the Lenovo Forums and see just how many posts of this nature there are. The laptop itself works without apparent issue at this time, but I like to dot my i's and cross my T's, and having an "unknown device" in my Device Manager tends to leave me a little bit deflated.

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10-25-2020

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Re:Legion 5-15IMH05H - Type 81Y6 - Unknown device - ACPI\VEN_LHK&DEV_2019

2020-10-25, 16:29 PM

Такая же ситуация! Смогли что-то узнать! Буду благодарен за любую информацию! Legion 5-15ARH05 (Lenovo) - Type 82B5

 

The same situation! We were able to find out something! I would be grateful for any information! Legion 5-15ARH05 (Lenovo) - Type 82B5

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Re:Legion 5-15IMH05H - Type 81Y6 - Unknown device - ACPI\VEN_LHK&DEV_2019

2020-10-25, 16:56 PM

@ JDGillis wrote:
 

 

Assuming you are running Windows 10, the current driver (linked below) is for ACPI\VEN_VPC&DEV_2004 so hopefully installing the latest driver will resolve the problem, because I do not see an older driver for your model specific to ACPI\VEN_LHK&DEV_2019.

 

Lenovo Energy Management for Windows 10 (64-bit) - Notebook

https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/legion-series/legion-5-15imh05h/downloads/driver-list/component?name=Power%20Management

 

 

Cheers,

 

 

I'm afraid your solution didn't help.

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10-25-2020

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Re:Legion 5-15IMH05H - Type 81Y6 - Unknown device - ACPI\VEN_LHK&DEV_2019

2020-10-27, 12:14 PM

https://download.lenovo.com/consumer/mobiles/wwe00eae07jw.exe

first uninstall the old driver by right clicking on that unknown device or u can uninstall device, then restart the laptop > and install the energy management above..

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10-28-2020

Italy

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Re:Legion 5-15IMH05H - Type 81Y6 - Unknown device - ACPI\VEN_LHK&DEV_2019

2020-10-28, 22:52 PM

I have solved this problem!

 

I have done a clean reset of windows with an usb pen, re-installed all the driver from the lenovo website and the problem was solved!

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Re:Legion 5-15IMH05H - Type 81Y6 - Unknown device - ACPI\VEN_LHK&DEV_2019

2020-11-01, 14:40 PM

@ Melmito wrote:
 

 

https://download.lenovo.com/consumer/mobiles/wwe00eae07jw.exe

first uninstall the old driver by right clicking on that unknown device or u can uninstall device, then restart the laptop > and install the energy management above..

 

 

This did not work, sorry.

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